Home / 3,072.14-4,607.60-1,123.68

Finding the Fourth Proportional to 3,072.14, 4,607.60 and 1,123.68

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Solution

The fourth proportional to 3,072.14, 4,607.60 and 1,123.68 is: 1,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.14 : 4,607.60 = 1,123.68 : x
  2. Step 2: Convert to fraction form
    3,072.14/4,607.60 = 1,123.68/x
  3. Step 3: Cross multiply
    3,072.14x = 4,607.60 × 1,123.68
  4. Step 4: Simplify right side
    3,072.14x = 5,177,462.35
  5. Step 5: Solve for x
    x = 5,177,462.35/3,072.14
  6. Step 6: Final answer
    x = 1,685.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.